CN102734622A - A plunger pump - Google Patents
A plunger pump Download PDFInfo
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- CN102734622A CN102734622A CN2011100807498A CN201110080749A CN102734622A CN 102734622 A CN102734622 A CN 102734622A CN 2011100807498 A CN2011100807498 A CN 2011100807498A CN 201110080749 A CN201110080749 A CN 201110080749A CN 102734622 A CN102734622 A CN 102734622A
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- Prior art keywords
- oil
- plunger
- plunger pump
- pump according
- eccentric shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/02—Lubricating-pumps with reciprocating piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/02—Pumping installations or systems having reservoirs
- F04B23/025—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a plunger pump, comprising an eccentric shaft (3), a pump unit (1) and an oil-storage barrel (2) that is arranged above the pump unit (1), wherein the eccentric shaft (3) goes across [through] the pump unit (1) to be connected with the oil-storage barrel (2); the pump unit (1) comprises an oil-drawing, oil-pressurizing part (11) and an oil-discharging part (12) detachably connected with each other; and the eccentric shaft (3) is used for driving the oil-drawing, oil-pressurizing part to pump oil from the oil-storage barrel and to discharge the oil via the oil-discharging part (12). The plunger pump has the advantages of simple structure, low failure rate, and convenient disassembly and maintenance.
Description
Technical field
The present invention relates to lubricant pump, particularly, relate to a kind of plunger pump.
Background technique
At present, the plunger pump that is used for lubrication system uses extensively.Normally; Plunger pump comprises that mainly being used for oil suction presses the pump unit of oil, the eccentric shaft that is used for the oil-storing barrel of oil storage and is used for the driven pump unit; Wherein the working principle of plunger pump is through the eccentric shaft drive plunger, thereby makes the plunger linear reciprocating motion realize the work of oil suction pressure oil.Structurally; Usually adopt the pump unit of integral type at present in the industry; The connection through pin or key of the plunger to-and-fro motion of spring and eccentric shaft drives stirs food tray or the like in the oil-storing barrel; Cause complex structure, the processing of plunger pump inconvenient, and be prone to break down and dismantle also inconvenience extremely of maintenance.
Summary of the invention
The purpose of this invention is to provide a kind of plunger pump, this plunger pump is simple in structure, and rate of fault is low and easy to maintenance.
To achieve these goals; The present invention provides a kind of plunger pump; This plunger pump comprises eccentric shaft, pump unit and is installed in the oil-storing barrel of top, pump unit; Said eccentric shaft passes said pump unit and is connected to said oil-storing barrel, and said pump unit comprises that the oil suction that removably links together presses oil part and fuel-displaced part, and said eccentric shaft is used to drive said oil suction and presses partly pump fat absorption and grease confessed through said fuel-displaced part in the said oil-storing barrel of oil.
Preferably, said oil suction presses the oil part to have inlet port, oil pocket and the oil outlet that is interconnected, and said fuel-displaced part has oil discharge passage, and said oil outlet is communicated with said oil discharge passage.
Preferably; Said oil suction presses the oil part to comprise plunger and one-way valve spool; Said plunger can be arranged on a side of said oil pocket with moving axially, and said one-way valve spool can be arranged on the opposite side of said oil pocket with moving axially, and said eccentric shaft drives said plunger and moves axially.
Preferably, in the arranged outside of said one-way valve spool shutoff is arranged, and between said one-way valve spool and said shutoff, be provided with Returnning spring.
Preferably, said oil suction presses the oil part to have drain tap, and this drain tap and is communicated with oil discharge passage on the said fuel-displaced part between said one-way valve spool and said shutoff.
Preferably, said plunger pump also comprises slide block, and said plunger is connected to said slide block, and said eccentric shaft contacts and drives said slide block with said slide block and moves toward complex line.
Preferably, said slide block forms quadra, has draw-in groove on this quadra, and the engagement of said plunger is in said draw-in groove.
Preferably, said eccentric shaft is positioned at the inside of said quadra, and has guide pad in the side of said quadra.
Preferably, be connected with said plunger respectively, be respectively arranged with said guide pad in the other relative both sides of said quadra in the relative both sides of said quadra.
Preferably, the side in the relative both sides of said quadra is connected with said plunger, is respectively arranged with said guide pad in the other relative both sides of said quadra.
Preferably, said oil-storing barrel comprises and stirs food tray and stir the axle sleeve that food tray links to each other with said that this axle sleeve has irregularly-shaped hole, is inserted in the said irregularly-shaped hole to the upper end form fit of said eccentric shaft.
Preferably; Said oil-storing barrel comprises and stirs food tray and stir the axle sleeve that food tray links to each other with said; This axle sleeve has irregularly-shaped hole, and the upper end of said eccentric shaft and the lower end of special-shaped bar are in transmission connection through gear mechanism, is inserted in the said irregularly-shaped hole to the upper end form fit of said special-shaped bar.
Preferably, said oil-storing barrel is removably mounted on the said pump unit.
Preferably, have mounting hole in the bottom of said oil-storing barrel, said axle sleeve passes through Bearing Installation in said mounting hole.
Preferably, the said food tray that stirs removably is connected on the said axle sleeve through fastening piece.
Preferably, said plunger pump also comprises fuel-displaced device, and this fuel-displaced device comprises total oil discharge passage that is formed on the pump unit and the oil pipe that links to each other with this total oil discharge passage; Said fuel-displaced device also comprises bolt; Said bolt has axial hole and the radial direction through hole that is interconnected, and an end of said oil pipe has oil connection, and said bolt passes said oil connection and twists and to be affixed in said total oil discharge passage; Said axial hole is communicated with said oil discharge passage, and said radial direction through hole is communicated with said oil pipe.
Preferably, said oil connection forms the tubulose with endoporus, and has the side opening that is communicated with said oil pipe on the sidewall, and said bolt passes said endoporus and said radial direction through hole is communicated with said side opening.
Preferably, said oil connection removably is connected or the structure that forms as one with said oil pipe.
Preferably, said bolt has orthogonal two radial direction through hole optionally to be communicated with said side opening.
Preferably, has gasket seal between the head of said oil connection and said bolt and/or between said oil connection and said pump unit.
Through technique scheme, plunger pump provided by the invention is simple in structure, the low and easy-maintaining of rate of fault.
Other features and advantages of the present invention will partly specify in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with following embodiment, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation of the pump unit of plunger pump provided by the invention;
Fig. 2 is the schematic top plan view of a kind of mode of execution of plunger pump provided by the invention;
Fig. 3 is the partial schematic sectional view of plunger pump among Fig. 2;
Fig. 4 is the schematic top plan view of the another kind of mode of execution of plunger pump provided by the invention;
Fig. 5 is the partial schematic sectional view of plunger pump among Fig. 4;
Fig. 6 is the partial schematic diagram of the fuel-displaced device of plunger pump provided by the invention;
Fig. 7 is the sectional view of bolt among Fig. 6;
Fig. 8 is the sectional view of oil connection among Fig. 6.
Description of reference numerals
1 pump unit, 2 oil-storing barrels
3 eccentric shafts, 4 bolts
5 total oil discharge passage 6 oil pipes
7 oil connections, 8 gear mechanisms
9 fixed holes
13 plungers, 14 one-way valve spools
15 slide blocks, 16 draw-in grooves
17 shutoff, 18 guide pads
19 Returnning springs 21 stir food tray
22 axle sleeves, 23 bearings
24 fastening pieces, 31 upper ends
41 axial holes, 42 radial direction through hole
43 heads, 71 endoporus
72 side openings, 81 special-shaped bars
A inlet port b oil pocket
C oil outlet d drain tap
The e oil discharge passage
Embodiment
Be elaborated below in conjunction with the accompanying drawing specific embodiments of the invention.Should be understood that embodiment described herein only is used for explanation and explains the present invention, is not limited to the present invention.
Plunger pump is as a kind of lubricant pump; Mainly comprise the pump unit and be installed in the oil-storing barrel on the pump unit; Eccentric shaft by drivings such as motors passes the pump unit and extends to oil-storing barrel always; Eccentric shaft is used for the plunger linear reciprocating motion of driven pump unit, pump fat absorption from oil-storing barrel (lubricant oil or lubricating grease), and the grease that pump is inhaled pumped and be fed to required lubricating point through oil pipe etc.
In the present invention; As shown in figures 1 and 3; Plunger pump mainly comprises eccentric shaft 3, pump unit 1 and is installed in the oil-storing barrel 2 of 1 top, pump unit; Eccentric shaft 3 passes pump unit 1 and is connected to said oil-storing barrel 2, and said pump unit 1 comprises that the oil suction that removably links together presses oily part 11 and fuel-displaced part 12, and said eccentric shaft 3 is used to drive said oil suction and presses the pump fat absorptions and grease confessed through said fuel-displaced part 12 in the said oil-storing barrel 2 of oily part 11.Oil suction presses oily part 11 can be releasably attached on the fuel-displaced part 12 through fastening pieces such as bolts usually.
In the prior art, the pump unit all is to comprise a pump housing usually, in the pump housing, is provided with plunger, one-way valve, inlet port, oil pocket, oil outlet, each oil duct etc., and structure is very complicated and processing is inconvenient.In the present invention, press oily part 11 and 12 two parts of fuel-displaced part through pump unit 1 being configured to oil suction, therefore simple in structure, easy to process and dismounting is safeguarded also very convenient.
As shown in Figure 1; Inlet port a, oil pocket b and oil outlet c that oil suction presses oily part 11 to have to be interconnected; 12 of fuel-displaced parts have oil discharge passage e, and oil outlet c is communicated with oil discharge passage e, thereby can the grease that suck from oil-storing barrel 2 be seen off through oil discharge passage e.
Usually; Oil suction presses oily part 11 to comprise plunger 13 and one-way valve spool 14; In order to satisfy the to-and-fro motion of plunger 13, plunger 13 can be arranged on the side of oil pocket b with moving axially, and one-way valve spool 14 also can be arranged on the opposite side of oil pocket b with moving axially simultaneously; Plunger 13 cooperatively interacts with one-way valve spool 14, accomplishes oil suction and presses oil work.In addition; Arranged outside at one-way valve spool 14 has shutoff 17; The kind of shutoff 17 is preferably the plug wire with sealing effect and does not leak with the assurance grease, and shutoff 17 also can be used as spring seat, so that between one-way valve spool 14 and shutoff 17, Returnning spring 19 is set; Returnning spring 19 is biased on the one-way valve spool 14, to keep the to-and-fro motion of one-way valve spool 14.
In real work, plunger 13 is driven by eccentric shaft 3 and realizes to-and-fro motion, when plunger 13 during to left movement; One-way valve spool 14 also to left movement, seals oil outlet c simultaneously under the effect of Returnning spring 19, plunger 13 continues to left movement; Thereby in oil pocket b, form negative pressure of vacuum; When plunger 13 moves to left when opening inlet port a, grease is inhaled in the oil pocket b, carries out oil-absorbing process; Then; Plunger 13 receives eccentric shaft 3 drivings to begin to move right and seals inlet port a; Grease to sucking in the oil pocket b is exerted pressure, and the elastic force that this pressure forces one-way valve spool 14 to overcome Returnning spring 19 moves right and opens oil outlet c, then; Grease in the oil pocket b flows into the oil discharge passage e of fuel-displaced part 12 by oil outlet c, to realize confessing of grease.
When plunger 13 moves right stroke terminal; The right-hand member of plunger 13 will contact the left end of one-way valve spool 14; At this moment, in order to guarantee the serviceability of fuel feeding efficient, functional reliability and component, the end face of the end face of plunger 13 right-hand members and one-way valve spool 14 left ends all is roughly the plane; Thereby the two can realize the zero clearance contact, guarantees the grease that sucks among the oil pocket b is all extruded.In addition; Through appropriate design plunger 13, one-way valve spool 14, Returnning spring 19 and shutoff 17; Make when oil suction oil outlet c by effective sealing and inlet port a is fully opened; On the contrary, when pressing oil then inlet port a by effective sealing and oil outlet c is fully opened, thereby can guarantee effectively that oil suction presses the functional reliability and the stability of oil.
In order to regulate the pressure at one-way valve spool 14 two ends; Make one-way valve spool 14 successfully to move axially; Oil suction presses oily part 11 also to be provided with drain tap d, and this drain tap d is communicated with between said one-way valve spool 14 and shutoff 19 and with oil discharge passage e on the fuel-displaced part 12.
The pump unit that is used for plunger pump provided by the invention, simple in structure, oil suction be can high efficiencyly carry out and oil and fuel-displaced work pressed, oil part and fuel-displaced part mutual noninterference are pressed in oil suction, and rate of fault is low, and easy accessibility.
In addition; In order better to realize the to-and-fro motion of plunger 13, as shown in Figure 2, plunger pump provided by the invention also comprises slide block 15; Said plunger 13 is connected to said slide block 15, and said eccentric shaft 3 contacts and drives said slide block 15 with said slide block 15 and moves toward complex line.
In the prior art, plunger 13 all is by spring reset usually, i.e. acting in conjunction through eccentric shaft and spring realizes moving toward complex line.Yet spring is easy to lose efficacy in long-term using process or is stuck, thereby causes the plunger pump can't proper functioning.
In the present invention; Plunger 13 is connected on the slide block 15 through suitable mode; Thereby in the process that eccentric shaft 3 driving sliding block 15 move toward complex line, just can drive that plunger 13 moves simultaneously and no longer need any spring, therefore thoroughly solve any problem of bringing because use spring.
In addition, as shown in Figure 2,3 inside that can be positioned at said quadra of said eccentric shaft, and can also have guide pad 18 in the side of said quadra.Through this structure, eccentric shaft 3 drives the quadra motion in the quadra inner rotation, because the side of quadra has guide pad 18 respectively, therefore can limit quadra and on rectilinear direction, move back and forth, and structure is very simple, and reliable operation.Wherein, Have one or more grooves on the inner side surface of guide pad 18 provided by the invention, and the outer side surface of the quadra of corresponding slide block 15 have one or more convexities of using mutually with it, through such setting; Making slide block 15 can be directed to piece 18 erects; Thereby make the slide block 15 can to-and-fro motion under the guiding of guide pad 18, and do not contact other parts, reduced unnecessary wearing and tearing.In addition, for this type of Placement, the present invention does not limit, and other Placement that also can adopt those skilled in the art to know repeats no more at this.
As shown in Figure 2, as preferred embodiment a kind of, be connected with said plunger 13 respectively in the relative both sides of said quadra, be respectively arranged with said guide pad 18 in the other relative both sides of said quadra.Promptly; With the direction shown in Fig. 2; Be connected with a plunger 13 respectively in the left and right sides of quadra, then be respectively arranged with guide pad 18 in the both sides up and down of quadra, a pair of up and down guide pad 18 is used to limit quadra and only on left and right directions, moves toward complex line.
In Fig. 2; Particularly; Drive plungers 13 linear reciprocating motion oily part 11 is pressed in the oil suction of pump unit 1 in through eccentric shaft 3 and slide block 15, thus through inlet port a from being installed in pump fat absorption in oil-storing barrel 2 (see figure 3)s on the pump unit 1, then outwards feed to required lubricating point.On oily part 11 and guide pad 18 are pressed in oil suction, some fixed holes 9 can be set, thereby can be fixed to easily on the fuel-displaced part 12 through fastening piece such as bolt etc.In other words, oil suction presses oily part 11, guide pad 18 and slide block 15 separately as standalone module, be installed on the fuel-displaced part 12, so overall structure is simple, easy to process and dismounting and safeguard also very easy.
As shown in Figure 2; Be respectively arranged with an oil suction that comprises plunger 13 in the left and right sides of quadra and press oily part 11; These two oil suctions press grease that oily part 11 pumps inhale to pump through separately oil discharge passage e (see figure 1) on the fuel-displaced part 12, press two corresponding oil discharge passage e of oily part 11 can be in the fuel-displaced part 12 internal exchange General Logistics Departments through total oil discharge passage 5 and the outside feed of oil pipe 7 (see figure 6)s that is attached thereto with two oil suctions.Because the oil suction of single plunger 13 presses oil to hocket, and therefore presses oily part 11 through two oil suctions are set, can guarantee that grease is through total oil discharge passage 5 continuous outwards feeds.
Fig. 4 is the schematic top plan view of the another kind of mode of execution of plunger pump provided by the invention; Fig. 5 is the partial schematic sectional view of plunger pump among Fig. 4.
Like Fig. 4 and shown in Figure 5, be mainly that with above-mentioned mode of execution difference only the side in the relative both sides of said quadra is connected with said plunger 13, rather than plunger 13 be set respectively in both sides.Other structures and above-mentioned mode of execution in this mode of execution are basic identical.
Particularly, the side in the relative both sides of said quadra is connected with said plunger 13 and is respectively arranged with said guide pad 18 in the other relative both sides of said quadra.Promptly; With the direction shown in Fig. 4; Only be connected with a plunger 13 in the left side of quadra, then be respectively arranged with guide pad 18 in the both sides up and down of quadra, a pair of up and down guide pad 18 is used to limit quadra and only on left and right directions, moves toward complex line.In this mode of execution; Because only the side at quadra is provided with plunger 13; Therefore can suitably adjust the position relation between each component, for example quadra and eccentric shaft moved towards a lateral deviation with respect to the center of plunger pump, so that make that the overall structure of plunger pump is compact more.
Mode of execution as shown in Figure 2 has two plungers 13, can be applicable to large-flow plunger pump, and mode of execution as shown in Figure 4 only has a plunger 13, can be applicable to the small flow plunger pump, and can reduce plunger pump size, reduce cost.
Need to prove that at this present invention does not limit the number of plunger, those skilled in the art can change number of plungers according to the requirements such as flow of plunger pump within the scope of the invention.For example, in mode of execution shown in Figure 2, shown in the left and right sides of quadra to be connected with a plunger 13 respectively, but those skilled in the art are readily appreciated that, also can be connected with a plurality of plungers 13 respectively in the left and right sides at quadra.In like manner, in mode of execution shown in Figure 4, the side that those skilled in the art also can be chosen in quadra as required is provided with a plunger 13 or a plurality of plungers 13.
As shown in Figure 3; In order to guarantee that the grease in the oil-storing barrel 2 can successfully be inhaled in the pump unit 1; Usually all be provided with in the oil-storing barrel 2 and stir food tray 21, for example will scrape off and remove bubble in the degreasing etc. attached to the grease on oil-storing barrel 2 inwalls to stir grease.
In the present invention, also have in the oil-storing barrel 2 and stir the axle sleeve 22 that food tray 21 links to each other, this axle sleeve 22 has irregularly-shaped hole 221, for convenient disassembly, stirs food tray 21 and is connected with the axle sleeve 22 preferred fastening pieces 24 that use.In addition, 1 work of the eccentric part of eccentric shaft 3 (like eccentric wheel) driven pump unit is inserted in the irregularly-shaped hole 221 to 31 form fit in upper end of eccentric shaft 3, and promptly also adopt and the identical structure of irregularly-shaped hole 221 shapes the upper end 31 of eccentric shaft.As a preferred embodiment, the upper end 31 of irregularly-shaped hole 221 and eccentric shaft is preferably square structure, also can adopt triangle or other polymorphic structures.Through this structure, dismounting is very convenient between eccentric shaft 3 and the axle sleeve 22.
As shown in Figure 5, when the present invention adopts mode of execution shown in Figure 4, in order to practice thrift inner space and the proper functioning that guarantees plunger 13, the eccentric shaft 3 of can setovering.Therefore; In order to realize that eccentric shaft 3 drives axle sleeve 22 rotations at the center that is arranged on; And then the purpose of food tray 21 rotations is stirred in drive; The present invention can be provided with gear mechanism 8 (for example comprising two pitch wheels) between eccentric shaft 3 and axle sleeve 22, pass to the rotating force with eccentric shaft 3 and stir food tray.That is, in two pitch wheels, one of them is connected with eccentric shaft 3, and another is connected with special-shaped bar 81, cooperates profiled holes 221 by special-shaped bar 81, and drives axle sleeve 22 rotations.The gear mechanism 8 is here no longer too much given unnecessary details at this for the structure that those skilled in the art knew.
In the real work, cooperate through abnormity, axle sleeve 22 can pass to the rotating force of eccentric shaft 3 and stir food tray 21 to stir grease.If need repairing or when safeguarding, directly eccentric shaft 3 to be extracted from axle sleeve 22 and got final product, dismounting is very convenient.
In addition, dismounting for ease can be installed to oil-storing barrel 2 on the pump unit 1 through fastening pieces such as bolts and (is installed on the fuel-displaced part 12 of pump unit 1 particularly).
In addition, in order axle sleeve 22 to be installed in the bottom of oil-storing barrel 2, oil-storing barrel 2 bottoms have mounting hole, and bearing 23 is housed in the mounting hole, and axle sleeve 22 inserts in the inner ring of bearing 23 ordinatedly.Make eccentric shaft 3 and axle sleeve 22 to plug immediately, for convenience detach.
Like Fig. 6, Fig. 7 and shown in Figure 8; In order smoothly grease outwards to be seen off, plunger pump provided by the invention also comprises fuel-displaced device, and this fuel-displaced device comprises total oil discharge passage 5 (being communicated with the oil discharge passage e shown in Fig. 1) that is formed on the pump unit 1 and the oil pipe 6 that links to each other with this total oil discharge passage 5; Said fuel-displaced device also comprises bolt 4; Said bolt 4 has the axial hole 41 and radial direction through hole 42 that is interconnected, and an end of said oil pipe 6 has oil connection 7, and said bolt 4 passes said oil connection 7 stubborn being affixed in said total oil discharge passage 5; Said axial hole 41 is communicated with said total oil discharge passage 5, and said radial direction through hole 42 is communicated with said oil pipe 6.
In technique scheme; Bolt 4 has outside thread, and total oil discharge passage 5 has internal thread, through screw-thread fit; Bolt 4 can pass oil connection 7 and be screwed in total oil discharge passage 5, therefore can easily oil pipe 6 and total oil discharge passage 5 be coupled together.
Bolt 4 has axial hole 41 and radial direction through hole 42.In the time of in bolt 4 is screwed into total oil discharge passage 5, total oil discharge passage 5 communicates with the axial hole 41 of bolt 4, thereby grease wherein can flow in the oil pipe 6 through axial hole 41 and radial direction through hole 42.
For the side opening 72 that cooperates oil connection 7, said bolt 4 preferably has two radial direction through hole 42 of mutual crisscross.Therefore, when mounted, can select in four opening ends of two radial direction through hole 42 any one with oil connection 7 on side opening 72 communicate, thereby install very conveniently, and allow oil pipe 6 to have a plurality of different setting angles, flexible for installation.
Preferably, at said oil connection 7 and state between the bolt head 43 of bolt 4 and/or between said oil connection 7 and said pump unit 1, can have gasket seal, leak from this joint to prevent grease.
In sum, compared with prior art, the present invention has made full use of idea of modular, makes that whole plunger pump is simple in structure, and dismounting is very convenient with maintenance, and working stability is reliable.Particularly, compared with prior art, the present invention has following characteristics at least:
One, pump unit 1 adopts split-type design, comprises that the oil suction that is detachably connected mutually presses oily part 11 and fuel-displaced part 12, therefore, the simple in structure and easy processing of various piece, and dismounting is safeguarded also very convenient between the two.
Two, press oily part 11 in oil suction,, guaranteed that oil suction presses the functional reliability and the working efficiency of oily process through cooperatively interacting between plunger 13, one-way valve spool 14, Returnning spring 19 and the shutoff 17.In addition, cooperate (when pressing oily process to finish) with zero clearance between one-way valve spool 14 end faces, can improve its work durability and put forward high pressure oil efficient through plunger 13 end faces.
Three, eccentric shaft 3 moves toward complex lines through slide block 15 drive plungers 13; Plunger 13 no longer needs spring to reset; Thereby thoroughly solved owing to use all problems that spring reset caused the problem that for example spring failure, the plunger pump that causes such as stuck can't proper functioning.
Four, adopt the Placement of plug type between the axle sleeve 22 on eccentric shaft 3 and the oil-storing barrel 2, so dismounting is very convenient.In addition; Axle sleeve 22 with stir between the food tray 21 and can also link to each other through fastening pieces such as bolt, screw 24; Also can link to each other between oil-storing barrel 3 and the pump unit 1 (being specially the fuel-displaced part 12 of pump unit), so the overall structure dismounting is safeguarded all very convenient through fastening pieces such as bolts.
Five, adopt unique bolt 4 and oil connection 7 to be connected between oil pipe 6 and the total oil discharge passage 5 with axial hole 41 and radial direction through hole 42; Therefore simple in structure, easy to connect; And oil pipe 6 can also be selected different setting angles, and is therefore flexible for installation.
In addition; Through modular design method of the present invention; Can also some fixtures of plunger pump such as pressure gauge, filter, explosion-proof valve, pressure transducer etc. be integrated on the function module; Not only overall structure is simple, beautiful shape to make plunger pump, and operation and maintenance is also very convenient.
More than combine accompanying drawing to describe preferred implementation of the present invention in detail; But; The present invention is not limited to the detail in the above-mentioned mode of execution; In technical conceive scope of the present invention, can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.For example the shape of slide block, plunger, one-way valve spool and shutoff and various is connected, the mode of fastening and sealing etc.
Need to prove in addition; Each concrete technical characteristics described in above-mentioned embodiment under reconcilable situation, can make up through any suitable manner; As use the present invention listed one or several structure; For fear of unnecessary repetition, the present invention explains no longer separately that to various possible compound modes the various combinations that do not break away from technical conceive of the present invention all belong to protection scope of the present invention.
Claims (20)
1. plunger pump; This plunger pump comprises eccentric shaft (3), pump unit (1) and is installed in the oil-storing barrel (2) of top, pump unit (1); Said eccentric shaft (3) passes said pump unit (1) and is connected to said oil-storing barrel (2); It is characterized in that; Said pump unit (1) comprises oil suction pressure oil part (11) and the fuel-displaced part (12) that removably links together, and said eccentric shaft (3) is used to drive said oil suction and presses oily partly (11) to confess through said fuel-displaced part (12) from the interior pump fat absorption of said oil-storing barrel (2) and with grease.
2. plunger pump according to claim 1; It is characterized in that; Said oil suction presses oil part (11) to have inlet port (a), oil pocket (b) and the oil outlet (c) that is interconnected, and said fuel-displaced part (12) has oil discharge passage (e), and said oil outlet (c) is communicated with said oil discharge passage (e).
3. plunger pump according to claim 2; It is characterized in that; Said oil suction presses oil part (11) to comprise plunger (13) and one-way valve spool (14); Said plunger (13) can be arranged on a side of said oil pocket (b) with moving axially, and said one-way valve spool (14) can be arranged on the opposite side of said oil pocket (b) with moving axially, and said eccentric shaft (3) drives said plunger (13) and moves axially.
4. plunger pump according to claim 3 is characterized in that, in the arranged outside of said one-way valve spool (14) shutoff (17) is arranged, and between said one-way valve spool (14) and said shutoff (17), is provided with Returnning spring (19).
5. plunger pump according to claim 4; It is characterized in that; Said oil suction presses oil part (11) to have drain tap (d), and this drain tap (d) is positioned between said one-way valve spool (14) and the said shutoff (17), and is communicated with oil discharge passage (e) on the said fuel-displaced part (12).
6. plunger pump according to claim 3 is characterized in that, said plunger pump also comprises slide block (15), and said plunger (13) is connected to said slide block (15), and said eccentric shaft (3) contacts and drives said slide block (15) with said slide block (15) and moves toward complex line.
7. plunger pump according to claim 6 is characterized in that, said slide block (15) forms quadra, has draw-in groove (16) on this quadra, and the head of said plunger (131) is bonded in the said draw-in groove (16).
8. plunger pump according to claim 7 is characterized in that, said eccentric shaft (3) is positioned at the inside of said quadra, and has guide pad (18) in the side of said quadra.
9. plunger pump according to claim 8 is characterized in that, is connected with said plunger (13) respectively in the relative both sides of said quadra, is respectively arranged with said guide pad (18) in the other relative both sides of said quadra.
10. plunger pump according to claim 8 is characterized in that, the side in the relative both sides of said quadra is connected with said plunger (13), is respectively arranged with said guide pad (18) in the other relative both sides of said quadra.
11. plunger pump according to claim 1; It is characterized in that; Said oil-storing barrel (2) comprises and stirs food tray (21) and stir the axle sleeve (22) that food tray (21) links to each other with said; This axle sleeve (22) has irregularly-shaped hole (221), is inserted in the said irregularly-shaped hole (221) to upper end (31) form fit of said eccentric shaft (3).
12. plunger pump according to claim 1; It is characterized in that; Said oil-storing barrel (2) comprises and stirs food tray (21) and stir the axle sleeve (22) that food tray (21) links to each other with said; This axle sleeve (22) has irregularly-shaped hole (221), and the upper end (31) of said eccentric shaft (3) is in transmission connection through gear mechanism (8) with the lower end of special-shaped bar (81), is inserted in the said irregularly-shaped hole (221) to the upper end form fit of said special-shaped bar (81).
13., it is characterized in that said oil-storing barrel (2) is removably mounted on the said pump unit (1) according to claim 11 or 12 described plunger pumps.
14. plunger pump according to claim 13 is characterized in that, has mounting hole in the bottom of said oil-storing barrel (2), said axle sleeve (22) is installed in the said mounting hole through bearing (23).
15. plunger pump according to claim 14 is characterized in that, the said food tray that stirs removably is connected on the said axle sleeve (22) through fastening piece (24).
16. plunger pump according to claim 1; It is characterized in that said plunger pump also comprises fuel-displaced device, this fuel-displaced device comprises total oil discharge passage (5) that is formed on the pump unit (1) and the oil pipe (6) that links to each other with this total oil discharge passage (5); Said fuel-displaced device also comprises bolt (4); Said bolt (4) has axial hole (41) and the radial direction through hole (42) that is interconnected, and an end of said oil pipe (6) has oil connection (7), and said bolt (4) passes said oil connection (7) and twists and to be affixed in said total oil discharge passage (5); Said axial hole (41) is communicated with said oil discharge passage (2), and said radial direction through hole (42) is communicated with said oil pipe (6).
17. plunger pump according to claim 16; It is characterized in that; Said oil connection (7) forms the have endoporus tubulose of (71); And have the side opening (72) that is communicated with said oil pipe (6) on the sidewall, said bolt (4) passes said endoporus (71) and said radial direction through hole (42) is communicated with said side opening (72).
18. plunger pump according to claim 17 is characterized in that, said oil connection (7) removably is connected with said oil pipe (6) or the structure that forms as one.
19. plunger pump according to claim 17 is characterized in that, said bolt (4) has orthogonal two radial direction through hole (42) optionally to be communicated with said side opening (52).
20. plunger pump according to claim 16 is characterized in that, has gasket seal between the head (43) of said oil connection (7) and said bolt (4) and/or between said oil connection (7) and said pump unit (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110080749.8A CN102734622B (en) | 2011-03-31 | 2011-03-31 | Plunger pump |
| PCT/CN2012/070961 WO2012129986A1 (en) | 2011-03-31 | 2012-02-08 | Piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110080749.8A CN102734622B (en) | 2011-03-31 | 2011-03-31 | Plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102734622A true CN102734622A (en) | 2012-10-17 |
| CN102734622B CN102734622B (en) | 2016-02-03 |
Family
ID=46929408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110080749.8A Active CN102734622B (en) | 2011-03-31 | 2011-03-31 | Plunger pump |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102734622B (en) |
| WO (1) | WO2012129986A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103807127A (en) * | 2013-09-27 | 2014-05-21 | 潘建民 | Centrally-mounted pushing mechanism of eccentric bearing of through hole of plunger of plunger pump |
| CN110043440A (en) * | 2019-05-29 | 2019-07-23 | 王湫锂 | Balanced type booster pump driving mechanism |
| CN115748655A (en) * | 2022-11-30 | 2023-03-07 | 北京振冲工程机械有限公司 | Hydraulic vibroflotation device |
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| CN103807127A (en) * | 2013-09-27 | 2014-05-21 | 潘建民 | Centrally-mounted pushing mechanism of eccentric bearing of through hole of plunger of plunger pump |
| CN110043440A (en) * | 2019-05-29 | 2019-07-23 | 王湫锂 | Balanced type booster pump driving mechanism |
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| CN115748655B (en) * | 2022-11-30 | 2023-06-20 | 北京振冲工程机械有限公司 | Hydraulic vibroflotation device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012129986A1 (en) | 2012-10-04 |
| CN102734622B (en) | 2016-02-03 |
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